Quantitative Aptitude - Arithmetic Ability Questions

What is the area of the sector whose central angle is 90° and radius of the circle is 14 cm?

A shopkeeper by selling 13 Titan watches, earns a profit equal to the selling price of 3 Titan watches. His profit percentage is

Present age of A is 2 times the present age of B. After 8 years the B's age will be 4 times of C's present age. If C celebrated his fifth birthday 9 years
ago, then what is the present age (in years) of A?

If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?

The ratio 1 : 5 can be expressed in decimal as

What is the simplified value of tan (θ/2) + cot (θ/2)?

If (6x ­- 5) = (4x + 7), then the numerical value of (x + 1)3  is

If tan π/3c + cosec π/6c = x, then x is